RE Webasto air heater 2000 stc newly installed ,why do I get white smoke out of my air combustion suction pipe and nothing from my exhaust .Any help appreciated Thanks Patrick

Is the pump grounded?

What is year--make--model?
Are you losing coolant? The white smoke may be coolant in the combustion cylinder, possibly caused by a head gasket problem. If head gasket problem, fix that first.

With idle issues, clean/check anything that has to do with idle air system. Any applicable trouble codes?

The white smoke you are seeing is steam. From your description, sounds like you have coolent seeping into the combustion chamber, mixing with your fuel/air, and exiting out through your exhaust as steam. 1, blown head gasket. 2. cracked head or block, 3, warped head due to overheating. Most common is #1.

Head gasket leak, white smoke is antifreeze leaking into combustion chamber, do not run it will ruin engine! replace head gasket and check heads for warp

Hi Joanne, dont know a big pile about cars but I also have 2003 Voyager and I know that this is caused when your heater is up fully. There should also be a whining noise. There is some system in the Chrysler that uses diesel to assist your heater. This causes this series of events when you stop your car and is nothing to worry about. On the subject of heating, my heater is **** and doesnt seem to be enough to heat car. Hope this is helpful. C Burns

Its perfectly normal.Hot exhaust gases mixing with cold air and by products of the combustion process create the watery substance that you see spit out .Dual fuel (LPG,Hydrogen etc) vehicles do this a lot more noticably.By products of the combustion process are various but water vapour is one of them.Alot of heat is generated by the exhaust so watching a car driving in very cold conditions you can see this effect more clearly

White smoke usually associated with water or moisture. it doesn't take too much water to produce white smoke. check

1. cloudy oil under oil cap
2. leak through gasket from cooling jacket to combustion chamber